21810776

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{209719}}^1$

素因数の和:209738

約数の個数: 16

約数和(自身を含む): 44041200

約数和(自身を除く): 22230424

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 209719, 419438, 838876, 1677752, 2726347, 5452694, 10905388, 21810776]

約数ペア:

[(1, 21810776), (2, 10905388), (4, 5452694), (8, 2726347), (13, 1677752), (26, 838876), (52, 419438), (104, 209719)]